x86_var.h revision 308433 
1/*-
2 * Copyright (c) 1995 Bruce D. Evans.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the author nor the names of contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD: stable/11/sys/x86/include/x86_var.h 308433 2016-11-08 06:13:22Z jhb $
30 */
31
32#ifndef _X86_X86_VAR_H_
33#define	_X86_X86_VAR_H_
34
35/*
36 * Miscellaneous machine-dependent declarations.
37 */
38
39extern	long	Maxmem;
40extern	u_int	basemem;
41extern	int	busdma_swi_pending;
42extern	u_int	cpu_exthigh;
43extern	u_int	cpu_feature;
44extern	u_int	cpu_feature2;
45extern	u_int	amd_feature;
46extern	u_int	amd_feature2;
47extern	u_int	amd_pminfo;
48extern	u_int	via_feature_rng;
49extern	u_int	via_feature_xcrypt;
50extern	u_int	cpu_clflush_line_size;
51extern	u_int	cpu_stdext_feature;
52extern	u_int	cpu_stdext_feature2;
53extern	u_int	cpu_fxsr;
54extern	u_int	cpu_high;
55extern	u_int	cpu_id;
56extern	u_int	cpu_max_ext_state_size;
57extern	u_int	cpu_mxcsr_mask;
58extern	u_int	cpu_procinfo;
59extern	u_int	cpu_procinfo2;
60extern	char	cpu_vendor[];
61extern	u_int	cpu_vendor_id;
62extern	u_int	cpu_mon_mwait_flags;
63extern	u_int	cpu_mon_min_size;
64extern	u_int	cpu_mon_max_size;
65extern	u_int	cpu_maxphyaddr;
66extern	char	ctx_switch_xsave[];
67extern	u_int	hv_high;
68extern	char	hv_vendor[];
69extern	char	kstack[];
70extern	char	sigcode[];
71extern	int	szsigcode;
72extern	int	vm_page_dump_size;
73extern	int	workaround_erratum383;
74extern	int	_udatasel;
75extern	int	_ucodesel;
76extern	int	_ucode32sel;
77extern	int	_ufssel;
78extern	int	_ugssel;
79extern	int	use_xsave;
80extern	uint64_t xsave_mask;
81
82struct	pcb;
83struct	thread;
84struct	reg;
85struct	fpreg;
86struct  dbreg;
87struct	dumperinfo;
88
89/*
90 * The interface type of the interrupt handler entry point cannot be
91 * expressed in C.  Use simplest non-variadic function type as an
92 * approximation.
93 */
94typedef void alias_for_inthand_t(void);
95
96void	*alloc_fpusave(int flags);
97void	busdma_swi(void);
98bool	cpu_mwait_usable(void);
99void	cpu_probe_amdc1e(void);
100void	cpu_setregs(void);
101void	dump_add_page(vm_paddr_t);
102void	dump_drop_page(vm_paddr_t);
103void	identify_cpu(void);
104void	initializecpu(void);
105void	initializecpucache(void);
106bool	fix_cpuid(void);
107void	fillw(int /*u_short*/ pat, void *base, size_t cnt);
108int	is_physical_memory(vm_paddr_t addr);
109int	isa_nmi(int cd);
110void	pagecopy(void *from, void *to);
111void	printcpuinfo(void);
112int	user_dbreg_trap(void);
113int	minidumpsys(struct dumperinfo *);
114struct pcb *get_pcb_td(struct thread *td);
115
116#endif
117